Waterproof freezing carton
By combining a wear-resistant base and waterproof coating with multi-layer corrugated paper and reinforcing columns, the waterproofness and strength of the carton are improved. By setting the waterproofness and strength of the carton, the problem of insufficient waterproofness and strength in the packaging of frozen aquatic products is solved, and the carton achieves high waterproofness and high strength protection.
Patent Information
- Application Number
- CN202520056304.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-10
AI Technical Summary
The existing packaging cartons for frozen aquatic products are not waterproof and strong enough to meet the needs of frozen aquatic products.
The wear-resistant base and waterproof coating are made of polypropylene, combined with multiple layers of corrugated paper and reinforcing columns, and waterproof layers and protective pads are set inside and out to improve the water resistance and strength of the carton.
It achieves high water resistance and high strength of the cardboard box, protects the contents from humidity in the freezing environment, improves the wear resistance of the cardboard box, and at the same time protects the contents from moisture during freezing.
Smart Images

Figure CN223721407U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to carton structure technical field, especially a waterproof frozen carton. BACKGROUND
[0002] The corrugated carton has the advantages of light weight, high cost performance, good structural performance, resistance to puncture, buffering, shock resistance, foldability, strong printing adaptability, environmental protection and recycling, and suitability for automatic packaging operation, and in the fierce competition with other packaging materials, the corrugated carton becomes a paper packaging container that is commonly used and rapidly developed so far with its unique performance, and becomes the most important packaging form in modern packaging.
[0003] The frozen water product packaging needs to adapt to the requirements of product freezing, low-temperature storage and transportation, variety diversification and food high-classification, therefore, the carton for frozen water product packaging needs to have excellent waterproofness, the surface of the carton needs to be waterproof treated, and meanwhile, the strength of the carton needs to be increased, and aiming at the requirements of frozen water products, the utility model provides a waterproof frozen carton. SUMMARY
[0004] The utility model discloses a waterproof frozen carton.
[0005] The above technical purpose of the utility model is realized through the following technical scheme.
[0006] A waterproof frozen carton, including carton side plate, wear-resistant base and carton cover plate, the wear-resistant base is the rectangular structure of upper end opening, wear-resistant base adopts polypropylene material to make, carton side plate and carton cover plate all are composed of inner paper panel, outer paper panel and the corrugated paper layer between both, wear-resistant base side is set to the L type structure of inside high outside low, and the thickness of inside is same with the thickness of corrugated paper layer setting, the thickness of outside is same with the thickness of outer paper panel setting, the lower end of outer paper panel adheres in the outside of L type structure, outer paper panel and wear-resistant base side outside are coated with waterproof coating, inner paper panel adheres in the inside of box, the inside of inner paper panel adheres with inner waterproof layer, and the protective pad is placed in the bottom of carton inner chamber.
[0007] Further, the bottom of the wear-resistant base is provided with wear-resistant edges arranged in a longitudinal and transverse staggered manner, and the wear-resistant edges are integrally formed with the wear-resistant base by using the same material.
[0008] Further, the waterproof coating is formed by coating epoxy resin paint or polyurethane paint.
[0009] Further, the inner waterproof layer is formed by adhering aluminum foil composite paper or polyethylene film to the inside of the box.
[0010] Further, the protective pad is made of polystyrene foam or polyurethane foam material.
[0011] Further, the corrugated paper layer is composed of multiple corrugated paper layers, adjacent corrugated paper layers are separated by paper boards, and the inner recess of each corrugated paper layer is provided with a reinforcing column made of the same material as the corrugated paper.
[0012] In conclusion, the carton has the advantages that: the carton has high strength and good waterproof effect, the wear-resistant base is arranged to improve the wear resistance of the easy-wear position of the carton, and the articles in the carton are well protected. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a side sectional view of the carton of the utility model;
[0014] Figure 2 is a partial enlarged view of the sectional plane of the carton of the utility model;
[0015] Figure 3 is a bottom structure schematic view of the carton of the utility model.
[0016] In the drawing, 1, carton side plate; 2, wear-resistant base; 3, carton cover plate; 4, wear-resistant edge; 5, protective pad; 6, inner paper panel; 7, outer paper panel; 8, corrugated paper layer; 9, waterproof coating; 10, inner waterproof layer; 11, reinforcing column. DETAILED DESCRIPTION
[0017] The utility model will be further described in detail below in combination with the drawings, and the technical scheme in the utility model embodiment is clearly and completely described. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0018] As shown in Figure 1 and Figure 2 A waterproof and refrigeration carton, including carton side plate 1, wear-resistant base 2 and carton cover plate 3, wear-resistant base 2 is the rectangular structure of upper end opening, wear-resistant base 2 is made of polypropylene material, carton side plate 1 and carton cover plate 3 are all composed of inner paper panel 6, outer paper panel 7 and corrugated paper layer 8 between them, wear-resistant base 2 side is set to the L-shaped structure of inside high and outside low, and the thickness of inside is same with the thickness of corrugated paper layer 8, the thickness of outside is same with the thickness of outer paper panel 7, the lower end of outer paper panel 7 is adhered to the outside of L-shaped structure, outer paper panel 7 and wear-resistant base 2 side are coated with waterproof coating, inner paper panel 6 is adhered to the inside of the box, the inside of inner paper panel 6 is adhered with inner waterproof layer 10, and protective pad 5 is placed at the bottom of carton cavity.
[0019] Further, as shown in Figure 3 The bottom of the wear-resistant base 2 is provided with longitudinally and transversely intersecting wear-resistant edges 4, which are integrally formed with the wear-resistant base 2 by using the same material.
[0020] Further, the waterproof coating 9 is formed by coating with epoxy resin paint or polyurethane paint.
[0021] Further, the inner waterproof layer 10 is formed by adhering aluminum foil composite paper or polyethylene film to the inside of the box, so that the water vapor inside and outside the box can be effectively prevented, and the strength of the carton can be effectively protected.
[0022] Further, the protective pad 5 is made of polystyrene foam or polyurethane foam material, which can effectively protect the products inside the carton and also has a certain heat preservation effect.
[0023] Further, the corrugated paper layer 8 is composed of multiple corrugated paper layers, adjacent corrugated paper layers are separated by paper boards, and each corrugated paper layer is provided with a reinforcing column 11, which is made of the same material as the corrugated paper, and the overall strength of the carton is improved by using the multiple corrugated paper layers 8 and the reinforcing columns 11.
[0024] The utility model discloses a wear-resistant base structure, which effectively improves the wear resistance of the easy-worn position of the bottom of the carton, and sets waterproof coating and inner waterproof layer on the inside and outside of the carton, thereby improving the waterproof performance of the inside and outside of the carton, effectively protecting the carton and the products from the influence of water vapor when the products are frozen or taken out, improving the overall strength of the carton by setting multiple corrugated paper layers and reinforcing columns, and further protecting the products by placing protective pads in the carton.
[0025] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and those skilled in the art can make non-creative contribution modifications according to the needs after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, they are protected by the patent law.
Claims
1. A waterproof frozen carton comprising a carton side panel (1), a wear-resistant base (2) and a carton cover panel (3), characterized in that: The wear-resistant base (2) is a rectangular structure with an open upper end, and is made of polypropylene material; the carton side plate (1) and the carton cover plate (3) are each composed of an inner paper panel (6), an outer paper panel (7) and a corrugated paper layer (8) located between the two; the wear-resistant base (2) is provided with an L-shaped structure with an inner side higher than an outer side, and the thickness of the inner side is the same as the thickness of the corrugated paper layer (8), and the thickness of the outer side is the same as the thickness of the outer paper panel (7); the lower end of the outer paper panel (7) is adhered to the outer side of the L-shaped structure; the outer paper panel (7) and the outer side of the wear-resistant base (2) are coated with a waterproof coating; the inner paper panel (6) is adhered to the inside of the box body; the inner side of the inner paper panel (6) is adhered with an inner waterproof layer (10); and a protective pad (5) is placed at the bottom of the inner cavity of the carton.
2. A waterproof frozen carton according to claim 1, wherein: The wear-resistant base (2) is provided with wear-resistant edges (4) longitudinally and transversely arranged at the bottom thereof, and the wear-resistant edges (4) are integrally formed with the wear-resistant base (2) by using the same material.
3. A waterproof frozen carton according to claim 1, wherein: The waterproof coating (9) is formed by coating with epoxy resin paint or polyurethane paint.
4. A waterproof frozen carton according to claim 1, wherein: The inner waterproof layer (10) is formed by adhering aluminum foil composite paper or polyethylene film to the inside of the box body.
5. A waterproof frozen carton according to claim 1, wherein: The protective pad (5) is made of polystyrene foam or polyurethane foam material.
6. A waterproof frozen carton according to claim 1, wherein: The corrugated paper layer (8) is composed of multiple layers of corrugated paper, adjacent corrugated papers are separated by paper boards, and each layer of corrugated paper is provided with a reinforcing column (11) in a concave portion thereof, and the reinforcing column (11) is made of the same material as the corrugated paper.